msm: Use proper return values in store*() functions
PM: devfreq: Add sysfs nodes for devfreq governors

Change-Id: If13251cb0b3897887531a8472d8d4a0eef3dccd2
[zwliew: keep initialisation of *data to compile with newer commits]
Signed-off-by: Zhao Wei Liew <zhaoweiliew@gmail.com>
PM: devfreq: Move governor node to gpufreq

Final path is: /sys/class/devfreq/fdb00000.qcom,kgsl-3d0/gpufreq
PM: devfreq: Fix simple_ondemand crashing on startup

Change-Id: Iedaf096f692b3c210c82137925ba83d12033abe4
PM: devfreq: Define tunables with a static scope
PM: devfreq: Fix derpage

Forgot to git add. Note to self: Don't push when you're
fucking pissed about fucking useless discussions.